That's true of every form of literature - each writer brings new things to it because each of us is an individual.

For me, study is a divine and daily imperative, and I study a page of Talmud daily so that I am not only teaching. My teaching is constantly being fed by my learning.

I would advise anyone who is at the start of a rest ritual like the Sabbath, to take it slowly and grow incrementally into it. Recognize that it will be hard at first. It's a discipline but then it is a true and deep joy.

For some reason, I write about crash-landed spaceships quite a lot and my wife is sick of hearing of hearing my ideas for new tales about them.

Teaching is almost like an act of prayer for me. I feel that I am present at the intersection of people and ideas in a very holy way. There are not many places where successful adults can take a break from work or domestic issues and freely and safely explore their inner lives or global issues through an ethical lens.

In order to survive, the human race must defend itself.

I don't read or write SF for cutting edge ideas; I read and write it for the storytelling, and every story is new. So have I brought anything new to it? Only in so far as no-one before has written about the characters I've invented in their particular situation.